GeoLog

Geomorphology

Imaggeo on Mondays: Loch Coruisk – home of the wild Kelpie

Imaggeo on Mondays: Loch Coruisk – home of the wild Kelpie

On the south-western coast of the Isle of Skye, Scotland, lies Loch Coruisk, supposedly home of a water horse. At the southern end of this freshwater Loch, the Scavaig River discharges into a sea Loch, Loch na Cuilce. Loch Coruisk snuggles close to the center of the Cuillin Hills complex, younger than both the northern and southern formations of the Isle. At present, the neighbouring hills are dominated by Paleogene intrusive bytownite gabbros that are responsible for the jagged outline of the topography. Cuillin Hills forms the remains of an eroded magmatic chamber.

Description by Cedric Gillmann, as it first appeared on imaggeo.egu.eu.

Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at http://imaggeo.egu.eu/upload/.

 

Imaggeo on Mondays: The surprising beauty of the Arctic tundra

Imaggeo on Mondays: The surprising beauty of the Arctic tundra

Close your eyes and try to imagine first thing which comes to your mind, when somebody says “Tundra”. What would you imagine?

Being a master student, I imagined cold, flat and a dead field. In fact, Tundra turn out to be completely different, at least in September 2010, when I and my colleagues were lucky to visit it.

As it is well known from textbooks no big trees grows in Tundra, however, the local mosses were full of colour and various berries.
Those hills (on the photo), called “sopkas”, build up the amazing landscape of tundra. Those hills are not originated volcanically or as debris. Those are conglomerations of stones pushed up from the ground by permafrost during melting-freezing cycle. So, each sopka should grow a little every winter, representing a magnificent power of permafrost.

Description by Alexandra Loginova, as it first appeared on imaggeo.egu.eu.

Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at http://imaggeo.egu.eu/upload/.

Imaggeo on Mondays: Sunset and moonrise at Yosemite

Imaggeo on Mondays: Sunset and moonrise at Yosemite

This side view of Half Dome at Yosemite National Park (California, USA) was taken from Washburn Point, a less frequented overlook a few hundred meters away from the popular Glacier Point outlook. The sun just on the right side behind the camera, which gave the orange tint to the back side of Half Dome. At the same time a full moon was mere minutes from bursting in the background, which resulted in the warm glow of the horizon. A few stars have already started appearing on the clear sky and a few star trails are visible.

Description by Teamrat Ghezzehei, as it first appeared on imaggeo.egu.eu.

Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at http://imaggeo.egu.eu/upload/.

Imaggeo on Mondays: Foggy Bandon beach, Oregon

Imaggeo on Mondays: Foggy Bandon beach, Oregon

This picture was taken at Bandon beach, Oregon. Bandon is well-known for its memorable seascape of stacks of all shapes and sizes. These rock formations are known to geologists as ‘knockers’ and carry nicknames like ‘the Wizards hat’. They date from the Jurassic period – about 200 to 145 million years ago – and are what remains from the great mélange during tectonic subduction processes when different types of rock are exposed to the surface, and the softer sandstone and mudstone are eroded away.

Fog does roll in occasionally during summer because if the valley is baking in 30°C heat or higher, the weather systems tend to suck ocean air and create fog on the beaches. Usually the fog disappears when you go inland for a couple of hundred meters and temperature rises as well.

Description by Frederik Tack, as it first appeared on imaggeo.egu.eu.

Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at http://imaggeo.egu.eu/upload/.